Kelly and others on the Eagles’ staff have poured over game tape of Vick from last season and beyond and still believe he is more than a viable thrower, Mike Freeman of CBS Sports reports.

One of the big concerns the new staff has is completely understandable: Vick’s injury history, including concussions.

Vick has never finished an entire NFL season and recently has been ravaged by those frightening concussions. He missed the latter part of the 2012 season with a severe one and we are reaching the point where another nasty hit to Vick’s head could end his career.

As one general manager explained, concussions are now to the NFL what torn ACLs once were. Before the technology to probe the brain improved so dramatically and quickly, few teams genuinely cared about concussion history. A torn knee? Yes. A busted head? So what.

That has totally reversed itself because we now know knees can be much more easily repaired and the extent of the damage football does to the mind remains a question.

Kelly is also concerned about the massive amount of Vick turnovers but also knows that a nice chunk of those come from Vick getting hit so much.